US2404728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing polymeric solutions
Assignee: EIDP Inc
•
Filing: 1945-05-11
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Granted: 1946-07-23
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Expires: 1965-05-11
Abstract
No abstract record available.
Inventors
- 👤 Theron G Finzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:58
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-07-22 | 1950-01-21 | 1950-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-22 | 1954-01-21 | 1954-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-22 | 1958-01-21 | 1958-07-23 | $7700.00 | Window Closed / Lapsed |